KotlinJpsBuildTest#testJre9: migrate to JDK 11

Possibility to use JDK 9 was dropped in the Kotlin repo in
this commit de7fb9606a so I had to migrate this test.

Consulted with @udalov. He said that it's fine to migrate this test to JDK 11

jps/jps-plugin/testData/general/Jre11/kotlinProject.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="IDEA_JDK" jdkType="JavaSDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="kotlinProject" />
+  </component>
+</module>